On January 1, 1879, Records Show That 500 of a Fish

question 53

Multiple Choice

On January 1, 1879, records show that 500 of a fish called Atlantic striped bass were introduced into the San Francisco Bay. In 1899, the first year fishing for bass was allowed, 100,000 of these bass were caught, representing 10% of the population at the start of 1899. Owing to reproduction, at any moment in time the bass population is growing at a rate proportional to the population at that moment. Write a differential equation satisfied by B(t) , the number of Atlantic striped bass a time t, where t is in years since January 1, 1879 and 0 $\le$ t < 20 and solve it for B(t) .

Identify and explain different isolation mechanisms that prevent species interbreeding.

Describe how geographical features and biomes contribute to speciation.

Recognize the role of polyploidy in speciation.

Explain the fossil record's role in understanding evolutionary processes like gradualism and punctuated equilibrium.

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